My high school started at 7am. I also took the bus; which picked up around 6:15am; so I usually woke up around 5:45am during the week. I would often nod off during my first or second period; and routinely took 2-3 hour naps when I got home from school; which screwed up my ability to fall asleep early at night or get much homework done. I sometimes wonder what my academics would have been like if I was actually awake…
I've always been confused by TV shows showing kids leaving for school and it's bright outside with the whole family awake. Growing up, it was dark when we got up for school and just barely sun up (depending on the season still dark) by the time we left to get on the bus.
For that matter, that's basically work for me as an adult that time of year. Sun comes up after I get to work and sets within an hour or so of me leaving work late fall through early to mid winter.
Personally though I've never minded it. I've pretty much woken up between 5:45 and 6:45 my entire life, if I'm lucky I'll sleep in til 7-7:15 on the weekends. Getting up to get on the road for hunting or fishing as a kid meant getting up as early as 3:30 sometimes.